Reducing-tank for making fertilizers.



No. 648,274. .Patented may l, iG.

' R. E. .MUNRU REDUCG TANK FR MAKING FERTlLZE-RS.

(Application led Sept. 9, 1B99.\

' ma Model.)

f Nrrn Stamps ericht REDUCING-TANK FR MKING FERTHJZERS srnnrrrc 'wmv farming tarief steeg pungent. naneenzo, eeneeseyreeor Application lil'el September 9,1899. Serial No. 729,978. (No model.)

To all whom it may concern:

Beit known that I, ROBERT E. MUNRO, a citizen of the United States, residing at No. 610 Chestnut Hill avenue, Baltimore, Ma ry land, have invented certain new and useful Improvements in Reducing-Tanks, of which the following is a specification.

My invention relates to reducing-tanks for certain substances used in the manufacture 'of fertilizers. The materials used forthis pur-v pose are hair, leather scraps, and the like but do not limit myself in the use ofthe tank to any special material, as it is Well adapted for use in the reduction of many other materials.

In the process ot manufacture the sub ally-sealed tank and processed to destroyits organic texture, sufficient moisture being maintained to produce a satisfactory product. It is quite necessary. that allf--the-meteriel -J-te be reduced be subjected to-a uniform 'treatment; and to attaiirthis to the greatest degree is the primary object of the present invention. In tanks adapted for this purpose now in use the steam for treating the material is introducedfrom the bottom and passes upwardly through the material but the th0rough permeation of the substances cannot be secured in this manner, as the material near the bottom of the tank is subjected to a greater amount of steam than that at the top, causing a variationin the product. l

The present invention includesa tank having a steam-distributing pipe extending longitudinally and centrally of the materialchamber and provided with spirally-arranged l laterally extending distributing nozzles,

means being provided for rotating the pipe.

The invention also includes the details of construction to be hereinafter described, and particularly pointed out in the claims.

The invention is illustrated in the 'accompartying drawings, inWhich- Y Figure l is a longitudinal sectional view of the apparatus, and Figs. 2, 3, and t are. detail views.l

The tank proper, l2 is provided with double sideg-'Walls 'and a higiged bottom 2. h ole''f in thetop of the tank permits the intred'uctioii of material in filling the tank. Throughout the length of the material-chan1- ber a pipe a extends, journaled in brackets stauce to be treated is placedvin a hermetic- 45, fitted in the' upper and lowereiids of the chamber." This pipe also passes through aA suitable stuiing-box in the head of thetauk and is mounted at its upper e'nd'n abracket 6,y supported upon the tankhead." AAbove this bracketabevelcd,gearissecurei driven by a suitable pinion 8, earriedby a, spindle i 10, supptirted in a bracket'll andidrivenby a pulley l2 from anysuitable'source of. power. A combined water and steam pipe I3 lends into the end of the pipe a, a branch4 pipe 14i leading from the pipe'lS to the Vsteam-supply and a similar pipe l5 leading `from the Spiral! y arra nge-df same to the Wate r-su pply. throughout the length of the pipedl are aseries of laterallyextending dischargemozzles 16 for supplying gthe steam and Water to the a material in the tank.A Along the side Walls of the tank,- suitably spaced apart, perforated om ing shown. The upper ends of these pipes extend outside the tank and are suitably con.- .s

n ected to the steam and Water supply.

- r75 The lower end of the pipe a is slightly reduced and projects below Athe end of the material-chamber into the hinged section 2 when1 said section isclosed. Upon a flange or lug secured near the upper edge of this section 2 a screen 19 for supporting the material to be treated rests. This screen is formed' in two sections, 'each section having a selinieircular recess centrally thereof to accommodate the 'extension of the pipe a. A frame 20 may also be provided for supporting the intermediate part oi the screen, the legs thereof resting on the bottom of the hinged section. In treat# ing the material after the tank is lilled steam is fed through the pipes, the pipe ce being rotated. fff'lhe nozzles will eiectually serve to Vdistribute the steam to the material throughout the length ot the .tank and to keep the same from packing at the center.f The pipes arranged along the wall of thetank also serve .tto direct the steam to the material near the same which would not otherwise be thoroughly treated.

.Ifthe raw material is found to be -too dry,`

water may be introduced throng the pipes until the proper moisture is obtained.

tom of the hinged section and the lattei filled by admitting Water thereto through perfora- A coil, of heating-pipe 21 may be located in tlA botloo - io resist the pressure, and honoo o n oli-omo vfrom choking tho nozzles, raoiow screw-nip piso 24 'may be ttet .in @he Sarno; having their discharge-openings. divided by ooss partitions,

The mat-armi 4under treatment packs very oiosoiy as it disntogmtos, and in order to distvsibue'tho sonm and prevent too oiose packing; i no@ the rotating shaft, wih vile spimiiy' mifzmged nozzios, which. px'ojoot slight-ly ffom. tho plane of tho sha-ft am; sufoion-ly to im ject the steam into tho maso from 'the perforated onda. The resistono@ offered to tiles@ nozzios i5 so groot that is is necessary to make iiom comparatively short, as oi'oorwise they Woul brook off, and havo liso found ii nooossmy to those momies inogmi with 'die shaft., :is no amount of clamping is ggio havo not: been ohio mmf/izo boom sfpmatomxd inoodona. Tzvfso nozzles aro o such width ai',

azi ba mo xf in thov oxtx'omoemfs of 'iso nozz'oo 'tho falli effect of the {iis'oimrgng-jets is secured.

I am. aware that it has 'been propos'od prio:l so my invention io oso o, Pointing shaft with to have the o'oot of loos move through i'fho` f a serios of ogmisingizidos projecting there the pun-poso of my nwoniaioioy os it would :not4 oo possible to rotate the shaft with agtators of any extent, :md if force suoioni were op has :Liso been pzoposod. in the nomment of floh to provido a cyiiuor with a, iotatog shaft; having 2, series of ,cutting-knives carried thereby; the knives'having porforaions on their back ogss. lSuisio a conotruotion Wol'i' 'injoonneotion 'Witirmy invention bond to paocvtiiomotariai instead ofloosezo it, while the jeta of;l steam Woud oo confined to a orouior zone' immoiateiy mound lh@ shaft m would 1i ot be fiistibutod ihi'oghout the mass, as in my invontion,whoro the jsts orois charged fromme ends of the vproject,onsoii 'nozzles' md pmotioilymaaiiy'of the' shaft. Iofiim* .A Kv l. in combination the tankliialvinghe smokioio in the top thoxooiio'or aho'rinseI-lion oftias maiorai, hnge ioo'ttom seoiion apte to fooiioao-no dioohoirgo of the motel-iai, o. #mir-1 rer within me tank proviod with se. Soioss of momies having d'fsohalge-opooingo foi' agiaaif ingiihe material an on @Mignot-fao "for dryiog the material, sbstanniaiiyas described. $5. u'oombnation a, tank, a, pipe 'extending axially thereof, the nozzles projecting @hero from, psi'oratious in the ends of the uozzioo,

ami hoiiow sorewnipploo bo to the ends-of:

sai nozzios, ubstantioliya described.

in' testimony whereof I az my signatur@ in meson@ of SWU Wimjoris'. f o

. RGJii-RT EMUNRO. Wiigno'ssesz l HENRY E. CooPER, U. S. MmDLEToN. 

